QUAD KETTENRAD UMBAUSATZ VON 18 GANG FAHRRAD AUF 24 GANG FAHRRADACHSE, SCHALTHEBEL
FREE SHIMANO LEFT-HAND THUMB SHIFTER. YOU SHOULD BE ABLE TO USE YOUR EXISTING TRIPLE FRONT DERAILLEUR TO OPERATE SHIFTING, DEPENDANT ON TYPE YOU HAVE CURRENTLY. RARE THUN QUAD (4) CHAINWHEEL CONVERSION KIT FOR 24 SPD.